Lateral-shifting mechanism for jacks



J. S. TOWNSEND LATERAL SHIFTING MECHANISM FOR JAGKS Filed Aug. 22 1921 2 Sheets-Shest I 2/612 M am 59 J. S. TOWNSEND LATERAL SHIFTING MECHANISM FOR JACKS Jan. 8, 1924. 1,419,344

Filed 22 1921 2 sheets-5h"? 3 kiyzz ,3 1540713642 Q Patented Jan. 8, 1924.

entrain am ss-T oar-mos.

' HARVEY was s w e s a sssswsxwm e swa To WRITING itness s 9s T EW F -I smea -e we was Application and z ingu'st'i22, 1921. SeriaINo. 494,354."

To all :wham z"; mag "comm:

Be it known that 1, 10.2119 fi. "Townsend a citizen ofuthe UnitedStates, nesiding a Harvgey, iingthecqunty of Cook and fitate oi *Illinois, have invented a eentain .new and useful lmprolvement in Latera lsShifting Mechanism for J aeks5 .of :which the following is a specification.

This invention relatesito .j aok mechanism" forihandlin heavy loads any kind: It is espeeiall-ya aptedlandfieslgnedfor and will be described as applied to irailro'ad-xlocomo tives imx'zolvingone, two or more hundred tons weight in the operation Gif iliflzingsuch a ilocomotive'ofi' .frdmdtsiywhiaels :Eor repair woik in the shop and for accurately 1ieplacingt-the ilooomotive on-Zits wheels .readiyr' for normal use;

When ,a locomotive :is removed =f-rom its wheels sand in accordance with i usual :practie tak'enlto another paxitxosf the'shop ifor 1:e-" pair lwork and-thenaftei atime, moved-hack i tOitSlWhBBlS, it is apractical 'eertainty that the ilocomotivehas shifited its position in .a' horizontal direction andmhat ,unless assisted" by external mechanism :it will not, on tbein'r loweredyregister'and'Jfit with its wheels standing roll. the tra'okwready to Ieceive it.

The object of this invention is to ,p rorvidie very satisfactory and efficient.lmeehanismby which Ia heavy alocomotive .of the eharadter described may, Lon ihein g brought into wfplzosie" imity :with its wheels; :beushirfted lateral 1y until the frame oithe engine is :inri'e'gister with and will accurately fits-the wheel boxes belonging to the track wheels :located in normaluposition on vthe track below the locomotive.

illhe invention .consists'in a-readily eonstructible and easily voperated meoh'anism for Battaining :the foregoing objects andfiin many features and-details of construction which .will be hereafter more i'fully set .fonth inthe speeieation and claim;

Referring to the drawings'in which 'iike numerals designate the .saine parts through-- out the several views F igure 1 is an elevation of a mechanism of this invention and locomotive resting thereon. I

Figure '2 is a detailed sectional {longitudinal elevation of the preferred folrnlof latel al shifting "mechanism.

Figure 3 is 'an 'endview taken at the left hand side of Fig. 2.

Figure-4 is a central sectional detail View 011115118: line 4-4 of-iFig'.

' two ior'imore outfits 1.6 and 18 are located addifierenflpoints along Itnaok 10 adjacent sto the -rlocomotive.

;lifting the loeomotive 1a off from the wheels -12 1t is essential-that it-be elevated high. enough so that ithefconventional jaws 20"depend1ng from :the frame 22uand 11m Inallywembracing" the drivingwboxes 24 be lifted toso'itie :su'eh position asshown :in

Fig. 11 :inwh'idh theljawsfll) clearthe driving bofiesasishown and'simila'nly it is vnecessarfy that one'eturning the .en ine to its normal zposition ithese .j awe-20 engage the .driv

in'g thoxes and accurately enter between the flanges :flfi'provided on'the driining boxes toTi'eceive'fthe jaws and hold ithemfin place.

In so lifting the -looomotive' the :beam .18 engages the locomotive .on 'asiipportingi nieniherzQS which may-be a permanent print or a Wtemponary interposed blocking .the only i'essential being that the beam 18 gets a holdonitlielocomotive at a point which will standibheastrain so 3.5410 permitthe beam when elevated'wto raise the locomotive or on reverse movementilowe'r it a'sidesi'red.

Theepnbhlem "solved by: this .in'vention is to 'piovide means placed on land preferablv detaehahly secured :to the beam 18 and engaged by theloeomotive supporting member 28 so that in the operation of lowering the locomotive "onto its wheels, it may be easily givena movement lateralof the track 10, viz, a movement along beam 18 until the operatorlfindsthatkthe jaws 20 register with the wheel box QA and that he can therefore lower the-locomotive in'to'normal position on thewheelsia' The specific form of mechanism found most preferable for this purpose is shown in detail in Figures 2 to 5 inclusive. Two of these mechanisms are on the beam as shown in Figure 1, one under each of the parts 28 of the locomotive. They are alike except that they are positioned end for end so that an operator on each side of the locomotive may operate the one which is nearest to him.

The mechanism referred to includes the base member 32 adapted to rest on the beam 18, this base being the bottom ofa box whose Side walls are 66. Owing to the fact that different locomotives are of different widths between their supporting members 28, it is desirable that these plates 32 be selectively positionable and yet detachably securable to the beam. This in the particular case here illustrated is accomplished b providing on the under surface of themember 32 a plurality of recesses 34 adapted to selectively fit over different groups of knobs or pin-ends 36 on the top of the beam 18 and to be held in that position through the combination of these pins and the weight of the locomotive when it is applied as shown in Figure 1.

Rising from one end of the plate 32 1s a shaft bearing block 38 perforated to receive the bearing member 40 of a screw shaft 56 provided with an integral flan e 42 engaging one side of the block 38 an a fastenlng nut 44 screw threaded onto the shaft 46 and lockable in position by any suitable means as for instance a pin 48. In the mounting of the device suitable washers 50 are interposed as shown. Theend of the shaft outside the nut is made in non-circular form 52 so that a socket wrench 54 may beapplied to it as shown in Figure 1 whereby an operator on applying an ordinary ratchet wrench 56, to the end of this socket wrench may rotate the shaft bearing 40 in the block 38. The bearing is provided with oil thru a suitable oil hole 54. The bearing 40 described is an extension of screw threaded shaft 56 whose opposite end is preferably but not necessarily supported in a bearing 58 formed in an end plate 60 detachably secured in place by the lag screws 62'and 64 entering respectively the base 32' and the side walls 66 which rise from it and form a box about the screw shaft 56. These side Walls 66 form the support or foundation for a finished metallic track 68 extending parallel with the central axis of the screw 56 and on opposite sides thereof.

Slidably mounted upon this track 68 is a load carrying cover plate 70 adapted to directly receive the locomotive carrying members 28 heretofore referred to. This cover plate 70 is adapted to slide along the tracks 68, even under heavy locomotive load, by reason of proper lubrication which is in the case here illustrated attained by providing in the inner surface of the cover plate a plurality of oil chambers 72 preferably filled with oil retaining material such as felt 74 and freshly supplied with oil as needed thru oil ports 76.

Extending from the central bottom portion of the member 70 is a suitably constructed lug which is perforated and screw threaded to receive the screw 56 as clearly shown in the drawing, the threads While in engagement with this member being suitably lubricated as, for instance by dropping oil down an oil passage 82 provided for the purpose.

In the operation of the device, the operator first places two base plates 32 in the proper position on the beam 18 in register with the pins 36 so that when the locomotive is brought in the parts 28 thereof will rest upon the plates 70. He then by operating the mechanism contained within the posts 16 positions the beam 18 to receive the locomotive. When the locomotive is brought in ready to be handled, he manipulates the lifting mechanism to raise beam 18 until the locomotive actually rests on and is carried by the plates 70. Two workmen are now assigned to the socket wrenches 54 on opposite sides of the locomotive and by working as near as may be in absolute unison, shift the locomotive horizontally as may be required on the beam 18 until the operator can see that the jaws 26 are in register with the wheel boxes 24, thereupon it is only necessary to operate the lowering mechanism to let the locomotive down into its proper normal position with reference to the wheels 12 whereupon the jack is removed from beneath the locomotive in the ordinary manner.

The socket wrenches 54 are made of considerable length merely for the reason that in most locomotives, the parts which can be carried by the device of this invention are usually so far under the locomotive that because of the obstruction offered by the locomotive cylinders and other dependent parts it is not very practical for a man to apply a ratchet Wrench directly to the ends 52 of the screw shaft 56.

One reason why it is necessary that the lateral shiftin mechanism described shall be removable from the beam 18 lies in the fact that under well known practice, such for instance as that described in Hardy Patent N 0. 1,085,734, the beam 18 is, in initially admitting the locomotive to the lifting ack mechanism, lowered below the level of the rails 10 so that the wheels 12 pass across the beam or trackways 92 provided for the purpose, and under such conditions the wheels might injure or destroy the lateral shifting mechanism if they were then on the beam, particularly if in the position shown in Figure 1.

Having thus described my invention what plate along the beam, and means at the end I claim as new and desire to secure by Let of each plate, nearest its end of the beam, 10 ters Patent is: adapted to be engaged by an operator at In mechanism for hoisting a locomotive, that end of the beam for operating the power 5 a vertically reciprocable supporting beam, a means.

pair of separated load receiving plates, car- In Witness whereof, I have hereunto subried by said beam, slow motion mechanism scribed my name. under each plate for moving the adjacent JOHN S. TOIVNSEND. 

